On a much more serious note, a guided tour of the mind of an alleged mass murderer by somebody who knew him well. The young man suspected in the Santa Barbara shootings, a friend is talking in his own words. Here he is. We wanted to get him into a group and trying to help him. He was really, really upset about why the world is so unfair to him and I'm a good-looking guy and why girls are falling for those ugly, fat guys. Sometimes I didn't want to hang out with him because he was so depressing. In turn, I will deny all of you life. He never actually feel that there was -- I'm going to enter the hottest sorority house of ucsb and I willçó slaughter every single spoiled stuck-up. We watched chronicled after the movie he said, I wanted to dominate the world. I will be a god exacting my retribution to all those who deserve it. I saw the picture of this car, so I was really shocked, I'm like, dude, this is Elliot's car. I started to see newsfeed on Facebook, I was shocked and disappointed. All you girls who rejected me and looked down upon me and treated me like scum, well -- all of you men for living a better life than me, I hate all of you. I can't wait to give you exactly what you deserve. I think he's a really lonely guy. Chilly insight into the mind of a very disturbed young man. We have covered way too many stories of young men with psychological problems. That's our coverage for this story this morning. We'll continue to cover this story on ABC and abcnews.com. There are other headlines this morning and for that as

This transcript has been automatically generated and may not be 100% accurate.